Music-leaf turner.



W. ZOPFF.

MUSIC LEAF TURNER.

APPLICATION FILED JUNE 29.1915.

1,175,859. Patented Mar. 14, 1916.

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W. ZOPFF.

MUSIC LEAF TURNERL APPLICATION FILED JUNE 29, 1915.

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UNITED STATES PATENT OFFICE.

WILLIAM ZOPFF, OF DETROIT, MICHIGAN.

MUSIC-LEAF TURNER.

Application filed June 29, 1915.

To all whom it may concern:

Be it known that 1, WILLIAM ZOPFF, a subject of Emperor William H of Germany, residing at Detroit, in the county of Wayne and State of Michigan, have invented new and useful Improvements in Music-Leaf Turners, of which the following is a specification.

The invention relates to a music leaf turner, and has for its primary object to provide a novel-construction wherein it will successively turn the leaves or sheets of music, and can be conveniently positioned upon a piano, organ, music stand, or the like to support music, and is automatic in its action.

Another object of the invention is the provision of a music leaf turner of this character wherein a single member is operated for the autcmatic turning of the music leaves in their order singly, thus obviating the necessity of h-..ndling the sheets for this purpose as is customary. A further object of the invention is the provision of a music leaf turner of this character which is simple in construction, thoroughly reliable and efficient in operation, strong, durable, and inexpensive in manufacture.

\Vith these and other objects in view, the invention consists in the construction, combination and arrangement of parts as will be hereinafter fully described, illustrated in the accompanying drawings, and pointed out in the claims hereunto appended.

In the drawings :F igure 1 is a front elevation of a music leaf turner constructed in accordance with the invention. Fig. 2 is an edge elevation. Fig. 3 is a similar View, looking toward the opposite edge. Fig. 4 is a sectional View on the line 41 of Fig. 1. Fig. 5 is a sectional view on the line 55 of Fig. 1. Fig. 6 is a sectional view on the line 6-6 of Fig. 1.

Similar reference characters indicate corresponding parts throughout the several views in the drawings.

Referring to the drawings in detail, the music leaf turner comprises a main support orboard 10, preferably made from-wood,

Specification of Letters Patent.

Patented Mar. 14, 1916. Serial No. 37,025.

having secured to its rear face a lower transversely arranged rail 11, and an upper resilient hook member 12, both being designed to serve in the mounting of the music leaf turner upon the instrument or stand when it is to be used for the turning of the leaves of music.

Fixed to the front face of the board 10 is a ledge 12 which serves as a rest for the music, while at an intermediate point on the front face of the said board above and below the ledge 12 are substantially U- shaped bearings 13 which are arranged in longitudinal alinement and have journaled therein stud shafts 14 to which are fixed the ends of swinging frames 15, each serving as a turning member for sheet music, and is preferably made from a single strand of stiff wire to give the requisite rigidity thereto, and these frames of the series vary in size with respect to each other.

Coiled about one of the stud shafts 14 are a series of springs 16, one end of each being fixed to one limb of each frame, while the other end is secured in the bearing 13, and these springs serve to move the arms from right to left for the automatic turning of the music leaf when the said frames are released, in a manner presently described.

Arranged centrally of the board 10 and fixed beneath the uppermost bearing 13 and the lower ledge 12 is a resilient cord or band 17 which serves to hold the music in place upon the said ledge, while connected to the frames 15 are suitable members 18 for engaging the leaves of the music so as to assure the successful turning thereof when the frames are released.

Mounted at the lower edge of the board 10 is a boxing or housing 19 in which is journaled a horizontally disposed roller 20, the shaft 21 of which is mounted in the sides of the boxing or housing 19 and has fixed thereto without the said boxing or housing ratchet wheels 22 and 28, respectively, while mounted upon the roller 20 are a series of trip projections 24, the same being arranged in staggered relation circumferentially of the said roller with respect to each other. FiXedto the-boxing. or housing 19 is a spring dog 25 which engages the teeth of the wheel 23' so as to lock the roller against rotation in one direction, yet permitting it to be moved in the reverse direction.:- l.

Loosely connected with the shaft 21next to the wheel 22 is an operating arm 26 on which is mounted a spring-held locking dog or pawl 27 which is adapted to engage the teeth of the wheel 22 for intermittently moving the roller 20 in one direction on the downward movement of the arm 26, while connected with the latter. is acoiled retractile springQS, the same being also connected to the board 10, and this spring serves to automatically lift the arm 26 after being pulled downwardly for the rotation v of the roller.

the pins for moving the same against the re- Fixed at one side of the roller bearing 13 are spaced guide flanges 29 in which are mounted vertically slidable latch pins 30 which are adapted to engage in notches 31 formed in the lower limbs of the swinging 5 frames 15 for locking the same at the right 25 hand side of the music leaf turner, and between these flanges 29 and coiled about the pins 30rare expansion springs 32 which work against shoulders 33 formed on the said pins and serve to normally hold the same in looking engagement with the frames,:the pins being extended below the housing or boxing 19 and terminate in finger grips 34so that they can be manually actu- 5 ated for releasing the frames if desired, or

for the locking of the said frames when swung from left to right in their respective order.

The pins 30 are formed with projections T 35 arranged in the path of movement of the trip projections 24 on the roller 20 so that when the roller is rotated the said trip projections 2.4 will engage the pro ections 35 on sistance of the springs 32 for the successive releasingof the frames 15, and thereby permit the turning of the leaves of the sheet music, which is eflected by the frames under the tension of the springs 16 connected thereto.

Connected to the arm 26 is 'a pull cable or cord 36 which'when pulled upon draws the said arm 26 downwardly, and in this movement it is locked with the ratchet wheel 26, thereby rotating the roller 20 a predetermined distance for the tripping of a single latch pin 30 to free the frame engaged thereby, and thus the latter will turn a single sheet of themusic from right to.

left. 3

Mounted in the housing or boxing 19 is a guide bail 37 which serves to hold the pins 30 in close relation to the roller 20 so as to guide the said pins when being tripped by the projections 21 on the respective roller and pins for the successful operation of the music leaf turner. When it is desired to turn the sheets of music from left to rightthe pins 30 are pulled downwardly out of the path of movement thereof, and when released will lock the frames 15 at the right hand side of the board 10 so that the leaves of music will be automatically turned from right to left when the music leaf turner is operated.

l romthe foregoing description, taken in connection with the accompanying drawing,the construction and manner of operation of the device will be clearly understood, and therefore a more extended explanation has been omitted.

"What is claimed is y r 1.-A musicleaf turner comprising a support, a plurality of frames swingingly mounted thereon, a plurality of locking pins supported for engagement with the frames to hold the same against swinging movement,

springs acting upon the frames for the swinging thereof when released by the pins,

a roller having tripping projections engageable with the pins to successively releasethe same on rotation of the said roller, means for imparting rotary movement to the roller, means for locking the roller against reverse rotatiommeans for guiding the pins during movement thereof, and a mounting for the roller and pins and connected with the support. a

' 2. A. music leaf turner comprising a support, mounted thereon, a plurality of locking pins supported for engagementwith the frames to hold the same against swinging movement, springs acting upon the frames for the swinging thereof when released bythe pins, a roller having tripping projections engageable with the pins to successively release the same on rotation of the said'roller, means for imparting rotary movement to the roller, means for locking the roller against reverse rotation, means for guiding.

the pins during movement thereof, a mounting for the roller andpins and connected with .means for imparting rotary movement to the roller, means for locking the roller against reverse rotation, means for guiding a plurality. of frames swingingly' the pins during movement thereof, a mount- In testimony whereof I aflix ing for the roller and pins and connected 1n presence of two Witnesses. With the support, means for moving the opmy signature erating means to normal position subsequent WILLIAM ZOPFF 5 to the rotation of the roller, and means for Witnesses:

moving the pins into locking relation to the GRACE E. KURTH,

frames.

CHARLES W. KURTH.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

